{"containers":{"cna":{"affected":[{"product":"security-advisories","vendor":"nextcloud","versions":[{"status":"affected","version":"< 19.0.13"},{"status":"affected","version":">= 20.0.0, < 20.0.11"},{"status":"affected","version":">= 21.0.0, < 21.0.3"}]}],"descriptions":[{"lang":"en","value":"Nextcloud Text is a collaborative document editing application that uses Markdown. A cross-site scripting vulnerability is present in versions prior to 19.0.13, 20.0.11, and 21.0.3. The Nextcloud Text application shipped with Nextcloud server used a `text/html` Content-Type when serving files to users. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. 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As a workaround, use a browser that has support for Content-Security-Policy."}]},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}]},"references":{"reference_data":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq","refsource":"CONFIRM","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq"},{"name":"https://github.com/nextcloud/text/pull/1689","refsource":"MISC","url":"https://github.com/nextcloud/text/pull/1689"},{"name":"https://hackerone.com/reports/1241460","refsource":"MISC","url":"https://hackerone.com/reports/1241460"}]},"source":{"advisory":"GHSA-x4w3-jhcr-57pq","discovery":"UNKNOWN"}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T23:33:55.559Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/nextcloud/text/pull/1689"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://hackerone.com/reports/1241460"}]}]},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2021-32733","datePublished":"2021-07-12T21:05:12.000Z","dateReserved":"2021-05-12T00:00:00.000Z","dateUpdated":"2024-08-03T23:33:55.559Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}